Question

我曾尝试使用过的代码 record input coming from bluetooth headset in iPhone 虽然使用这些代码我能够录制语音，但不能从设备（iphone）麦克风的蓝牙设备麦克风中录制我将如何将录制的声音传送到扬声器。 PL z帮助我和任何帮助赞赏

 // create and set up the audio session
   AVAudioSession* audioSession = [AVAudioSession sharedInstance];
  [audioSession setDelegate:self];
  [audioSession setCategory: AVAudioSessionCategoryPlayAndRecord error: nil];
  [audioSession setActive: YES error: nil];

// set up for bluetooth microphone input
UInt32 allowBluetoothInput = 1;
OSStatus stat = AudioSessionSetProperty (
                         kAudioSessionProperty_OverrideCategoryEnableBluetoothInput,
                         sizeof (allowBluetoothInput),
                         &allowBluetoothInput
                        );
NSLog(@"status = %x", stat);    // problem if this is not zero

// check the audio route
UInt32 size = sizeof(CFStringRef);
CFStringRef route;
OSStatus result = AudioSessionGetProperty(kAudioSessionProperty_AudioRoute, &size, &route);
NSLog(@"route = %@", route);    
// if bluetooth headset connected, should be "HeadsetBT"
// if not connected, will be "ReceiverAndMicrophone"

// now, play a quick sound we put in the bundle (bomb.wav)
CFBundleRef mainBundle = CFBundleGetMainBundle();
CFURLRef        soundFileURLRef;
SystemSoundID   soundFileObject;
soundFileURLRef  = CFBundleCopyResourceURL (mainBundle,CFSTR ("bomb"),CFSTR ("wav"),NULL);

NSError *error = nil;

audioRecorder = [[AVAudioRecorder alloc]
                 initWithURL:soundFileURLRef
                 settings:recordSettings
                 error:&error];
if (error)
{
    NSLog(@"error: %@", [error localizedDescription]);
} else {
    [audioRecorder prepareToRecord];
}

Answer 1

是的，上面的概念是正确的，对我很有帮助（但是没有一点添加或修改）但是路由到扬声器（设备扬声器）需要新的会话来创建

从蓝牙获取输入我们创建会话

    //// create and set up the audio session
AVAudioSession* audioSession = [AVAudioSession sharedInstance];
[audioSession setDelegate:self];
[audioSession setCategory: AVAudioSessionCategoryRecord error: nil];
[audioSession setActive: YES error: nil];

// set up for bluetooth microphone input
UInt32 allowBluetoothInput = 1;
AudioSessionSetProperty (kAudioSessionProperty_OverrideCategoryEnableBluetoothInput,sizeof (allowBluetoothInput),&allowBluetoothInput);

当你想要在蓝牙设备扬声器中播放声音时，用新创建的声音覆盖会话

- (IBAction)playAudio:(id)sender {



[[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayAndRecord error:nil];
UInt32 audioRouteOverride = kAudioSessionOverrideAudioRoute_Speaker;
AudioSessionSetProperty(kAudioSessionProperty_OverrideAudioRoute, sizeof(audioRouteOverride), &audioRouteOverride);




UInt32 size = sizeof(CFStringRef);
CFStringRef route;
OSStatus result = AudioSessionGetProperty(kAudioSessionProperty_AudioRoute, &size, &route);
NSLog(@"route = %@", route);
     //here u can diffrent route set up based on session audiosessionid

}

如何从蓝牙设备麦克风录制语音并在设备扬声器中播放

1 个答案: